OSID - osid.relationship.RelationshipList Service Interface Definition

Interface	osid.relationship.RelationshipList
Implements	`osid.OsidList`
Used By	`osid.relationship.RelationshipFamilySession`
	`osid.relationship.RelationshipLookupSession`
	`osid.relationship.RelationshipQuerySession`
	`osid.relationship.RelationshipSearchResults`
	`osid.relationship.rules.RelationshipEnablerRuleLookupSession`
Description	Like all `OsidLists`, `Relationship` provides a means for accessing `Relationship` elements sequentially either one at a time or many at a time. Examples: while (rl.hasNext()) { Relationship relationship = rl.getNextRelationship(); } or while (rl.hasNext()) { Relationship[] relationships = rl.getNextRelationships(rl.available()); }
Method	getNextRelationship
Description	Gets the next `Relationship` in this list.
Return	`osid.relationship.Relationship`		the next `Relationship` in this list. The `hasNext()` method should be used to test that a next `Relationship` is available before calling this method.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getNextRelationships
Description	Gets the next set of `Relationships` elements in this list. The specified amount must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `Relationship` elements requested which must be less than or equal to `available()`
Return	`osid.relationship.Relationship[]`		an array of `Relationship` elements. The length of the array is less than or equal to the number specified.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.